Fatigue failure of a material may occur, when it is subjected to
__________ stress.
(A) Fluctuating
(B) Tensile
(C) Compressive
(D) Torsion

1 Answer

Answer :

(A) Fluctuating

Related questions

Description : Fatigue failure of a material results from __________ stress. (A) Tensile (B) Compressive (C) Fluctuating (D) None of these

Last Answer : (C) Fluctuating

Description : A member which is subjected to reversible tensile or compressive stress may fail at a stress lower  than the ultimate stress of the material. This property of metal, is called  (A) Plasticity of the ... ) Elasticity of the metal  (C) Fatigue of the metal  (D) Workability of the metal

Last Answer : (C) Fatigue of the metal

Description : When the helical torsion spring is subjected to torque, the type of stress induced in the spring wire is, (A) Tensile stress (B) Compressive stress (C) Bending stress (D) Torsional shear stress

Last Answer : (C) Bending stress

Description : The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive) is called (a) repeated stress (b) yield stress (c) fluctuating stress (d) alternating stress

Last Answer : (c) fluctuating stress

Description : Propagation of fatigue failure is always due to compressive stresses. a) Due to bending b) Due to tensile c) Due to fatigue d) None of the listed

Last Answer : b) Due to tensile

Description : Propagation of fatigue failure is always due to compressive stresses. (a) Due to bending (b) Due to tensile (c) Due to fatigue (d) None of the listed

Last Answer : (b) Due to tensile

Description : The spokes of the flywheel are subjected to 1. direct shear stress 2. torsional shear stress 3. tensile stress 4. compressive stress

Last Answer : 3. tensile stress

Description : The rim of the flywheel is subjected to, 1. direct tensile stress and bending stress 2. torsional shear stress and bending stress 3. direct shear stress and bending stress 4. compressive stress and bending stress

Last Answer : 1. direct tensile stress and bending stress

Description : The spokes of the flywheel are subjected to, (A) Direct shear stress (B) Torsional shear stress (C) Tensile stress (D) Compressive stress

Last Answer : (C) Tensile stress

Description : When the helical compression spring is subjected to axial compressive force, the type of stress induced in the spring wire is, (A) Tensile stress (B) Compressive stress (C) Bending stress (D) Torsional shear stress

Last Answer : (D) Torsional shear stress

Description : When the helical extension spring is subjected to axial tensile force, the type of stress induced in the spring wire is, (A) Tensile stress (B) Compressive stress (C) Bending stress (D) Torsional shear stress

Last Answer : (D) Torsional shear stress

Description : When a nut is tightened by placing a washer below it, the threads of bolt are subjected to (A) Direct shear stress (B) Torsional shear stress (C) Tensile stress (D) Compressive stress

Last Answer : (A) Direct shear stress

Description : When a nut is tightened by placing a washer below it, the shank of bolt is subjected to (A) Direct shear stress (B) Torsional shear stress (C) Tensile stress (D) Compressive stress

Last Answer : (C) Tensile stress

Description : When a body is subjected to transverse vibrations, the stress induced in a body will be A Shear stress B Bending stress C Tensile stress D Compressive stress

Last Answer : B Bending stress

Description : When a body is subjected to transverse vibrations, the stress induced in a body B will be (A) Shear stress (B) Bending stress (C) Tensile stress (D)Compressive stress

Last Answer : (B) Bending stress

Description : When a body is subjected to transverse vibrations, the stress induced in a body will be a) shear stress b) bending stress c) tensile stress d) compressive stress

Last Answer : b) bending stress

Description : When a body is subjected to transverse vibrations, the stress induced in a body will be a) shear stress b) bending stress c) tensile stress d) compressive stress

Last Answer : b) bending stress

Description : When a body is subjected to transverse vibrations, the stress induced in a body will be a) shear stress b) tensile stress c) compressive stress d) none of the mentioned

Last Answer : b) tensile stress

Description : A cast iron T section beam is subjected to pure bending. For maximum compressive stress to be  three times the maximum tensile stress, centre of gravity of the section from flange side is  (A) h/4  (B) h/3  (C) h/2  (D) 2/3 h

Last Answer : (A) h/4 

Description : When a shaft is subjected to a twisting moment, every cross-section of the shaft will be under (a) Tensile stress (b) Compressive stress (c) Shear stress (d) All of these

Last Answer : c) Shear stress

Description : When a bar is subjected to increase in temperature and its deformation is prevented, the stress induced in the bar is (a) Tensile (b) Compressive (c) Shear (d) None of the above

Last Answer : (b) Compressive

Description : When a bar is subjected to a change of temperature and its longitudinal deformation is prevented, the stress induced in the bar is (a) Tensile (b) Compressive (c) Shear (d) Temperature

Last Answer : (d) Temperature

Description : When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is (a) 0.20 (b) 0.35 (c) 0.50 (d) 0.65

Last Answer : (c) 0.50

Description : The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to (a) static load (b) dynamic load (c) static as well as dynamic load (d) completely reversed load

Last Answer : (d) completely reversed load

Description : The connecting rod bolts are tightened up with the initial tension greater than external load so that (A) Failure of bolt will be static (B) The resultant load on bolt will not be affected by ... ) The bolt will not fail by fatigue although the external load is fluctuating (D) All the three

Last Answer : (D) All the three

Description : The phenomenon of decreased resistance of the materials to fluctuating stresses is the main characteristic of _____ failure. a) Fracture b) Fatigue c) Yielding d) None of the mentioned

Last Answer : b) Fatigue

Description : Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the (A) Ultimate tensile strength (U.T.S.) (B) Endurance limit (C) Elastic limit (D) None of these

Last Answer : (B) Endurance limit

Description : Transverse fillet welds are under (i) Bending and shear stresses (ii)Compressive and torsion shear stresses (iii)Tensile and compressive stresses (iv)None

Last Answer : (iv)None

Description : Parallel fillet welds are under  Shear and bending stresses  Compressive and torsion shear stresses  Tensile and compressive stresses  None

Last Answer :  None

Description : While designing screw threads, adequate length of engaged threads between the screw and nut is provided so as to prevent failure of threads due to (A) Direct shear stress (B) Torsional shear stress (C) Tensile stress (D) Compressive stress

Last Answer : (A) Direct shear stress

Description : __________ stress cannot be sustained by a fluid in equilibrium. (A) Shear (B) Tensile (C) Compressive

Last Answer : Option A

Description : Factor of safety is the ratio of the __________ stress to the working stress. (A) Tensile (B) Compressive (C) Yield (D) Bearing

Last Answer : Option C

Description : Which of the following is not a characteristic observed in material failure by fatigue fracture? (A) Plastic deformation of material does not occur (B) Initiation of crack from below the surface does ... (D) Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface

Last Answer : Option B

Description : A material subjected __________ must have high resilience. (A) Shock loading (B) Vibration (C) Fatigue (D) Tension

Last Answer : (A) Shock loading

Description : Reduction in the grain size reduces the __________ of the material. (A) Fatigue resistance (B) Tensile strength (C) Creep resistance (D) All (A), (B) & (C)

Last Answer : (C) Creep resistance

Description : Reduction in the grain size reduces the __________ of the material. (A) Fatigue resistance (B) Tensile strength (C) Creep resistance (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Description : Temper brittleness of a material can be fairly detected by the __________ test. (A) Fatigue (B) Notched bar impact (C) Tensile (D) Hardness

Last Answer : Option B

Description : Slow plastic deformation of metals under a constant stress is termed as __________ failure. (A) Fatigue (B) Endurance (C) Creep (D) None of these

Last Answer : (C) Creep

Description : The underground sewers are more subjected to A. Tensile force B. Compressive force C. Bending force D. Shearing force

Last Answer : ANS: B

Description : Cotter joint is employed when the members are subjected to which sort of stresses? a) Axial tensile b) Axial compressive c) Axial tensile or compressive d) None of the above

Last Answer : c) Axial tensile or compressive

Description : Cotter joint is used when the members are subjected to which type of stresses? a) Axial tensile b) Axial compressive c) Axial tensile or compressive d) None of the mentioned

Last Answer : c) Axial tensile or compressive

Description : Set screws are subjected to tensile forces only. a) Yes b) No, they are subjected to compressive forces only c) Both compressive and tensile d) Can’t be determined

Last Answer : b) No, they are subjected to compressive forces only

Description : Shafts are subjected to ______ forces. a) Compressive b) Tensile c) Shear d) None of the listed

Last Answer : b) Tensile

Description : Shafts are subjected to ______ forces. a) Compressive b) Tensile c) Shear d) None of the listed

Last Answer : b) Tensile

Description : A composite beam is composed of two equal strips one of brass and other of steel. If the  temperature is raised  (A) Steel experiences tensile force  (B) Brass experiences compressive force  (C) Composite beam gets subjected to a couple  (D) All the above

Last Answer : (D) All the above

Description : In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always (A) Zero (B) Tensile (C) Compressive (D) Tensile or compressive

Last Answer : (C) Compressive

Description : It is a secondary shaft used to counter the direction of main shaft. 81. Shafts are subjected to ______ forces. a) Compressive b) Tensile c) Shear d) twisting

Last Answer : b) Tensile

Description : Connecting rod of two stroke engine is subjected to A. Compressive load B. Tensile load C. Both compressive and tensile load D. None of the above

Last Answer : A. Compressive load

Description : Connecting rod of four stroke engine is subjected to A. Compressive load B. Tensile load C. Both compressive and tensile load D. None of the above

Last Answer : C. Both compressive and tensile load

Description : A circular shaft subjected to torsion undergoes a twist of 10in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2and if modulus of rigidity G = 0.8 x 106then the radius of the shaft should be (a) p/8 (b) p/27 (c) 18/p (d) 27/p

Last Answer : (d) 27/p